substance holonym (SUBSTANCE OF relation)

any of a large group of nitrogenous organic compounds that are essential constituents of living cells; consist of polymers of amino acids; essential i more..any of a large group of nitrogenous organic compounds that are essential constituents of living cells; consist of polymers of amino acids; essential in the diet of animals for growth and for repair of tissues; can be obtained from meat and eggs and milk and legumes(noun.substance)